# .NET Published articles for .NET. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## Build Your Own AI Agent Harness in C#, the MafClaw Live Series DevFeed: [Build Your Own AI Agent Harness in C#, the MafClaw Live Series]() Original publisher: [Read original article]() Author: Bruno Capuano Published: 2026-09-16T21:00:00Z Content type: tutorial Language: en Sources: [.NET Blog]() Topics: [Agent Harness](), [Microsoft Agent Framework](), [AI Agent](), [C#](), [.NET]() Tags: [agent](), [agent-framework](), [agent-harness](), [ai](), [building](), [c-sharp](), [cloud](), [csharp](), [microsoft-agent-framework](), [microsoft-reactor](), [net](), [observability]() ### AI overview This article introduces a four-part live series that builds a complete C# AI agent using the Microsoft Agent Framework harness. It describes adding tools, planning, file access, approvals, memory, skills, shell commands, code execution, background agents, observability, governance, evaluations, and hosted deployment. ### Source excerpt I am building a complete C# agent live, from a single call around an IChatClient to a production-ready, observable, governed agent, using the Microsoft Agent Framework harness in a 4-part Microsoft Reactor series. The post Build Your Own AI Agent Harness in C#, the MafClaw Live Series appeared first on .NET Blog. ## Rider and ReSharper 2026.2.2 Are Out! DevFeed: [Rider and ReSharper 2026.2.2 Are Out!]() Original publisher: [Read original article]() Author: Alexander Kurakin Published: 2026-09-16T14:12:44Z Content type: release Language: en Sources: [The JetBrains Blog]() Topics: [rider](), [resharper](), [AI-assisted coding](), [test-coverage]() Tags: [2026](), [ai-agent-hooks](), [ai-agents](), [code-coverage](), [coverage](), [hooks](), [jetbrains](), [macos](), [mcp](), [net](), [net-tools](), [releases](), [resharper](), [rider](), [update]() ### AI overview JetBrains releases Rider, ReSharper, and .NET tools 2026.2.2, adding an AI Agent Setup widget in Rider, more targeted hook feedback for coding agents, TUnit coverage support, and fixes including a macOS freezing issue. ### Source excerpt We've released version 2026.2.2 of ReSharper, Rider, and .NET tools. You can install this update from inside the tools themselves, through the Toolbox App, or on our website. Here's what's new in this update. Rider 2026.2.2 AI Agent Setup widget We've recently added a wide range of features to help you work with coding agents [...] ## Ubuntu's 'Rust-ification' Hits New Milestone: Coreutils Migration is Complete DevFeed: [Ubuntu's 'Rust-ification' Hits New Milestone: Coreutils Migration is Complete]() Original publisher: [Read original article]() Author: EditorDavid Published: 2026-09-16T04:04:00Z Content type: news Language: en Sources: [Slashdot]() Topics: [migration](), [Rust](), [Ubuntu](), [canonical](), [Security](), [audit](), [releases]() Tags: [audit](), [builds](), [canonical](), [cat](), [chmod](), [cves](), [ls](), [migration](), [net](), [release](), [releases](), [rust](), [security](), [ubuntu](), [ubuntu-25-10](), [version]() ### AI overview Ubuntu has completed its migration from GNU Coreutils to the Rust-based uutils implementations, moving the final cp, mv, and rm utilities in time for Ubuntu 26.10. The transition followed security audits that identified 113 issues, including 44 CVEs, most of which Canonical says have been resolved. ### Source excerpt "Ubuntu has managed to do away with GNU Core Utilities in its default stack," reports the blog It's FOSS. The last three utilities -- cp, mv and rm -- have been moved to versions from the uutils project (which reimplements utilities in Rust). Everything else, from ls and cat to chmod and du, made that jump in earlier releases... Canonical started "oxidizing" Ubuntu last year, and Ubuntu 25.10 became the first release to ship [ the uutils project's] coreutils as the default. That release also made sudo-rs the default privilege tool, replacing a command that had been in place for decades. 26.04 was the release where the plan did slow down quite a bit, as Canonical kept cp, mv, and rm on their GNU versions due to a bunch of TOCTOU issues that were blocking the full implementation. These were caught during an audit, when Canonical commissioned Zellic for two rounds between December 2025 and March 2026, focusing on the most security-sensitive utilities first. Across both rounds, Zellic raised 113 issues, and 44 of them were assigned CVEs. Canonical says the vast majority have been resolved. Getting here has had its ups and downs, and the last stretch was not clean. In July, uutils cp went back into the archive and came straight out again after it broke live image builds. The fix was quick; as the developers marked it "Critical," the fix went upstream, and the migration landed in time for 26.10. When typing commands, nothing changes for you on the surface. uutils coreutils is designed to be a drop-in replacement for essential GNU tools, and the project treats any divergence from GNU as a bug, further pointing out that some options may still be missing or behave differently. So if you prefer staying on the GNU version, you have the option to install the coreutils-from-gnu package that houses all the required components. Read more of this story at Slashdot. ## Build an interview coach app with the GitHub Copilot SDK DevFeed: [Build an interview coach app with the GitHub Copilot SDK]() Original publisher: [Read original article]() Author: Justin Yoo Published: 2026-09-15T16:00:11Z Content type: tutorial Language: en Sources: [Developer Blogs]() Topics: [GitHub Copilot](), [SDK](), [Model Context Protocol](), [.NET](), [Blazor]() Tags: [agent-framework](), [ai](), [blazor](), [github-copilot](), [github-copilot-sdk](), [mcp](), [microsoft-agent-framework](), [microsoft-foundry](), [model-context-protocol](), [net](), [sdk]() ### AI overview This tutorial demonstrates how to build an interview coach application with the GitHub Copilot SDK in .NET. The sample uses a Blazor chat interface, Copilot instructions and callable tools, and Model Context Protocol services for document handling and interview records. It emphasizes giving Copilot application-specific tools rather than access to shell commands or source files. ### Source excerpt An interview coach has to do more than ask questions. It needs to read a resume, follow up on an incomplete answer, and save enough context to give useful feedback at the end. Some of that work is conversation. Some of it requires calling an application service. The GitHub Copilot SDK lets you use the [...] The post Build an interview coach app with the GitHub Copilot SDK appeared first on Microsoft for Developers. ## Performance Improvements in .NET 11 DevFeed: [Performance Improvements in .NET 11]() Original publisher: [Read original article]() Author: Stephen Toub - MSFT Published: 2026-09-15T12:00:00Z Content type: article Language: en Sources: [.NET Blog]() Topics: [.NET](), [.NET 11]() Tags: [blog](), [improvements](), [net](), [net-11](), [performance](), [post]() ### AI overview This post surveys hundreds of performance improvements in .NET 11, including runtime and library changes that reduce bounds checks, allocations, locks, loop cycles, redundant checks, instructions, system calls, and array-copy costs. ### Source excerpt Take a tour through hundreds of performance improvements in .NET 11. The post Performance Improvements in .NET 11 appeared first on .NET Blog. ## Microsoft Releases .NET 11 RC1 with Go-Live Support, C# 15 and F# 11 as Default Language Versions DevFeed: [Microsoft Releases .NET 11 RC1 with Go-Live Support, C# 15 and F# 11 as Default Language Versions]() Original publisher: [Read original article]() Author: Almir Vuk Published: 2026-09-15T07:11:00Z Content type: news Language: en Sources: [InfoQ]() Topics: [.NET 11](), [C# 15](), [Microsoft](), [releases](), [ASP.NET Core](), [F#](), [SignalR](), [SDKs](), [.NET MAUI](), [native aot]() Tags: [android](), [api](), [asp-net-core](), [c-sharp-15](), [development](), [dotnet-11-rc-1-release](), [f-sharp](), [ios](), [macos](), [microsoft](), [native-aot](), [net](), [net-10](), [net-11](), [net-9](), [net-core](), [net-maui](), [news](), [releases](), [sdk](), [signalr]() ### AI overview Microsoft released .NET 11 Release Candidate 1 with go-live support for production use. It makes C# 15 and F# 11 the default language versions and stabilizes features from the preview cycle. The release also extends testing across mobile and desktop targets, updates SignalR authentication refresh APIs, and adds SDK, ASP.NET Core, Blazor, and Native AOT-related improvements. ### Source excerpt Last week, Microsoft has released .NET 11 Release Candidate 1, the first release candidate of the cycle, shipping with a go-live support license for production use. The release makes C# 15 and F# 11 the default language versions, extends dotnet test to mobile and desktop targets, finalizes the SignalR authentication refresh APIs, and improves Android build times in .NET MAUI. By Almir Vuk ## COBOL dev won .Net hackathon with help from AI - and their CIO loves it DevFeed: [COBOL dev won .Net hackathon with help from AI - and their CIO loves it]() Original publisher: [Read original article]() Author: Simon Sharwood Published: 2026-09-15T01:47:17Z Content type: news Language: en Sources: [www.theregister.com - Articles]() Topics: [AdventureX 2025](), [Artificial Intelligence](), [.NET](), [Development](), [coding]() Tags: [ai](), [ai-and-ml](), [australia](), [cobol](), [coding](), [copilot](), [dev](), [hackathon](), [mainframe](), [net](), [public-sector]() ### AI overview The article reports that a COBOL developer won a .NET hackathon with help from AI, a result praised by their CIO. The supplied summary also describes the Australia Taxation Office using Copilot practice to develop skills for future AI work. ### Source excerpt Australia Taxation Office sees footling with Copilot as a way to develop 'muscles' for real AI work ## How to Orchestrate Multi-Call Conversations with an LLM and Twilio Conversation Memory DevFeed: [How to Orchestrate Multi-Call Conversations with an LLM and Twilio Conversation Memory]() Original publisher: [Read original article]() Author: Amanda Lange Published: 2026-09-15T00:00:00Z Content type: tutorial Language: en Sources: [Twilio Blog]() Topics: [Large Language Model](), [.NET](), [ASP.NET](), [C#](), [Artificial Intelligence](), [Command-line interface](), [OpenAI](), [Environment Variables]() Tags: [account](), [agent](), [ai](), [api](), [c-sharp](), [cli](), [code](), [conversation-memory](), [developer-insights](), [environment-variables](), [how-to](), [llm](), [net](), [net-9](), [openai]() ### AI overview This tutorial shows how to build a C# .NET 9 ASP.NET Core service that preserves caller context, preferences, and action history across separate inbound calls using Twilio Conversation Memory and an LLM. ### Source excerpt How to Orchestrate Multi-Call Conversations with an LLM and Twilio Conversation Memory ## How to Connect Your Twilio Agent to External APIs DevFeed: [How to Connect Your Twilio Agent to External APIs]() Original publisher: [Read original article]() Author: Amanda Lange Published: 2026-09-15T00:00:00Z Content type: tutorial Language: en Sources: [Twilio Blog]() Topics: [AI Agent](), [API](), [C#](), [.NET 9](), [REST API](), [SDKs](), [OpenAI]() Tags: [agent](), [api](), [apis](), [c-sharp](), [developer-insights](), [environment-variables](), [how-to](), [net](), [net-9](), [ngrok](), [openai](), [rest-api](), [sdk]() ### AI overview This tutorial explains how to build a voice AI agent with C# and .NET 9 using Twilio Conversation Relay. It demonstrates LLM tool calling to fetch live data from an external REST API and covers project setup, required packages, environment variables, and API key storage. ### Source excerpt How to Connect Your Twilio Agent to External APIs ## How to Catch Security Vulnerabilities in Code Before They Reach Your Pull Requests DevFeed: [How to Catch Security Vulnerabilities in Code Before They Reach Your Pull Requests]() Original publisher: [Read original article]() Author: Umair Mirza Published: 2026-09-14T22:23:01Z Content type: tutorial Language: en Sources: [freeCodeCamp Programming Tutorials: Python, JavaScript, Git & More]() Topics: [Application Security](), [Security](), [Vulnerabilities](), [Secret Scanning](), [Git](), [pull-requests](), [ci](), [Command-line interface](), [.NET](), [Python](), [coding]() Tags: [application-security](), [ci](), [cli](), [code](), [devsecops](), [git](), [net](), [pull-requests](), [python](), [sast](), [secret-scanning](), [security](), [security-vulnerabilities](), [software-development](), [testing](), [vulnerabilities]() ### AI overview This tutorial explains how to shift security checks earlier in development by running SAST locally with Git pre-commit hooks. It demonstrates using the DevSkim CLI to detect insecure coding patterns, pairing it with Gitleaks for dedicated secret scanning, validating the setup with an intentional failure, and enforcing the checks in CI. ### Source excerpt Security reviews are most effective when developers receive feedback while the code is still fresh in their minds. Waiting until a pull request, CI build, or penetration test to find exposed credentia ## Share your .NET story with the community DevFeed: [Share your .NET story with the community]() Original publisher: [Read original article]() Author: Luis Quintanilla Published: 2026-09-14T17:05:00Z Content type: article Language: en Sources: [.NET Blog]() Topics: [.NET](), [.NET Conf](), [Development]() Tags: [2026](), [blog](), [community](), [conference](), [customer-stories](), [developer-stories](), [developers](), [development](), [modernization](), [net](), [net-conf](), [performance](), [post](), [virtual-event]() ### AI overview Microsoft invites teams to share how they use .NET to solve practical problems for possible inclusion in .NET Conf 2026 and other .NET channels. Submissions may describe applications, system modernization, performance, security, efficiency, modern C#, or practical AI-powered capabilities. ### Source excerpt Share how your team uses .NET to solve real problems and help us bring more community stories to .NET Conf 2026 and other .NET channels. The post Share your .NET story with the community appeared first on .NET Blog. ## Use C# unions and closed hierarchies in ASP.NET Core DevFeed: [Use C# unions and closed hierarchies in ASP.NET Core]() Original publisher: [Read original article]() Author: Dmitrii Korolev Published: 2026-09-10T17:00:00Z Content type: tutorial Language: en Sources: [.NET Blog]() Topics: [C# 15](), [ASP.NET Core](), [.NET](), [Polymorphism]() Tags: [asp-net-core](), [blazor](), [c-sharp](), [c-sharp-15](), [closed-hierarchies](), [json](), [minimal-api](), [mvc](), [net](), [net-11](), [openapi](), [polymorphism](), [signalr](), [system-text-json](), [union-types]() ### AI overview Explains how C# unions and closed hierarchies model API values with a fixed set of possible types in ASP.NET Core. It contrasts unions with open inheritance-based polymorphism and describes System.Text.Json support. ### Source excerpt Learn how C# unions and closed hierarchies work with System.Text.Json across ASP.NET Core Minimal APIs, MVC, SignalR, Blazor, and OpenAPI. The post Use C# unions and closed hierarchies in ASP.NET Core appeared first on .NET Blog. ## Security updates for Thursday DevFeed: [Security updates for Thursday]() Original publisher: [Read original article]() Author: jzb Published: 2026-09-10T13:14:35Z Content type: news Language: en Sources: [LWN.net]() Topics: [Security, Privacy and Abuse Prevention](), [.NET](), [Boot Process, passwd, systemd](), [Grafana]() Tags: [ansible](), [grafana](), [kernel](), [linux](), [net](), [opentelemetry](), [oracle](), [prometheus](), [python](), [redis](), [rust](), [security](), [systemd](), [ubuntu](), [updates]() ### AI overview A roundup of security updates issued by several Linux distributions for a range of packages. ### Source excerpt Security updates have been issued by AlmaLinux (389-ds-base, ansible-core, buildah, expat, glib2, gpsd, gpsd-minimal, gzip, kernel, kernel-rt, opentelemetry-collector, osbuild-composer, perl-DBI, python-lxml, python3.12-lxml, qt5-qtbase, thunderbird, valkey, vim, and xz), Debian (pyasn1), Fedora (darktable, freeipa, freerdp2, gdk-pixbuf2, GitPython, libsoup3, openssl, perl-Net-DNS, rust-ppmd-rust, samba, and valkey), Mageia (ceph, firefox, nss, perl-DBI, thunderbird, and wget), Oracle (389-ds-base, buildah, expat, git-lfs, glib2, glibc, gpsd, gpsd-minimal, grafana-pcp, kernel, libssh, nginx, perl-GD, python3.14-cryptography, redis:7, skopeo, thunderbird, valkey, xmlrpc-c, and xz), Slackware (xz), SUSE (bzip2, cpio, curl, dracut, fuse-overlayfs, golang-github-vpenso-prometheus_slurm_exporter, helm, java-1_8_0-ibm, kbfs, kernel, kernel-devel, libopenslide-devel, libsoup, libssh2_org, libusb-1_0, libvirt, libzypp, zypper, mcphost, multipath-tools, NetworkManager, opensc, openssl-3, perl-Net-DNS, python-aiohttp, python-Authlib, python-pip, python-sqlparse, python313-dnspython, python313-idna, rpcbind, sssd, strongswan, systemd, tomcat11, ucode-intel, and wget), and Ubuntu (dotnet8, dotnet10, ffmpeg, flatpak, netty, and perl). ## From dedicated Workers to Serverless Workers: Migrating Temporal Workflows to AWS Lambda DevFeed: [From dedicated Workers to Serverless Workers: Migrating Temporal Workflows to AWS Lambda]() Original publisher: [Read original article]() Author: Garima Gupta Published: 2026-09-09T00:00:00Z Content type: tutorial Language: en Sources: [Temporal Blog]() Topics: [AWS Lambda](), [Serverless](), [Amazon Web Services](), [Deployment](), [Testing](), [SDKs]() Tags: [aws](), [aws-lambda](), [deployment](), [go](), [java](), [kubernetes](), [net](), [python](), [serverless](), [temporal](), [temporal-voices](), [testing](), [typescript](), [versioning]() ### AI overview This guide explains how to migrate Temporal Workers from long-lived processes on Kubernetes to Temporal Cloud Serverless Workers running on AWS Lambda. It focuses on AWS Lambda with Python examples and covers lifecycle changes, invocation scaling, deployment, versioning, and testing. ### Source excerpt Learn to migrate Temporal Workers from dedicated infrastructure to AWS Lambda with Serverless Workers, with guidance on deployment, versioning, and testing. ## Announcing .NET 11 Release Candidate 1 DevFeed: [Announcing .NET 11 Release Candidate 1]() Original publisher: [Read original article]() Author: .NET Team Published: 2026-09-08T21:30:00Z Content type: release Language: en Sources: [.NET Blog]() Topics: [.NET](), [WinForms]() Tags: [announcements](), [asp-net-core](), [c-sharp](), [f-sharp](), [featured](), [net](), [net-11](), [net-maui](), [nuget](), [production](), [release](), [release-notes](), [updates](), [visual-studio](), [visual-studio-2026](), [windows](), [winforms]() ### AI overview .NET 11 Release Candidate 1 is available with a go-live support license. It includes updates across the runtime, SDK, MSBuild, NuGet, C#, F#, ASP.NET Core, .NET MAUI, and Windows Forms. ### Source excerpt .NET 11 Release Candidate 1 is available with improvements across libraries, runtime, SDK, MSBuild, NuGet, C#, F#, ASP.NET Core, .NET MAUI, and Windows Forms. The post Announcing .NET 11 Release Candidate 1 appeared first on .NET Blog. ## .NET Conf 2026 Community Days Call for Presenters Is Open DevFeed: [.NET Conf 2026 Community Days Call for Presenters Is Open]() Original publisher: [Read original article]() Author: Javier Lozano, Chris Sfanos, Jon Galloway Published: 2026-09-08T20:30:00Z Content type: news Language: en Sources: [.NET Blog]() Topics: [.NET]() Tags: [call-for-presenters](), [community](), [conference](), [net](), [net-conf](), [virtual-event]() ### AI overview The .NET Conf 2026 Community Days call for presenters invites proposals for community-led sessions about building with .NET and software development practices. ### Source excerpt Submit your session proposal for the community-led .NET Conf 2026 Community Days by October 6, 2026. The post .NET Conf 2026 Community Days Call for Presenters Is Open appeared first on .NET Blog. ## .NET and .NET Framework September 2026 servicing releases updates DevFeed: [.NET and .NET Framework September 2026 servicing releases updates]() Original publisher: [Read original article]() Author: Rahul Bhandari (MSFT), Tara Overfield Published: 2026-09-08T20:00:00Z Content type: release Language: en Sources: [.NET Blog]() Topics: [.NET](), [releases]() Tags: [asp-net-core](), [maintenance-updates](), [net](), [net-framework](), [release-notes](), [releases](), [security](), [september-2026](), [updates]() ### AI overview September 2026 servicing releases for .NET and .NET Framework provide security and non-security fixes. The post lists updated ASP.NET Core, Entity Framework Core, and Runtime versions across .NET 10, 9, and 8 release lines. ### Source excerpt A recap of the latest servicing updates for .NET and .NET Framework for September 2026. The post .NET and .NET Framework September 2026 servicing releases updates appeared first on .NET Blog. ## Microsoft's September 2026 Patch Tuesday addresses 964 CVEs (CVE-2026-81963, CVE-2026-85880) DevFeed: [Microsoft's September 2026 Patch Tuesday addresses 964 CVEs (CVE-2026-81963, CVE-2026-85880)]() Original publisher: [Read original article]() Author: Research Special Operations Published: 2026-09-08T18:07:55Z Content type: news Language: en Sources: [Tenable Blog]() Topics: [Microsoft](), [cve-2026-85880](), [.NET](), [ASP.NET](), [GitHub Copilot](), [Visual Studio Code](), [OpenSSH]() Tags: [asp-net-core](), [cve-2026-81963](), [cve-2026-85880](), [github-copilot](), [microsoft](), [net](), [openssh](), [patch-tuesday](), [security](), [september-2026](), [update](), [updates](), [visual-studio](), [windows]() ### AI overview Microsoft's September 2026 Patch Tuesday release addresses 964 CVEs, including two zero-days exploited in the wild. The release rates 104 vulnerabilities as critical and 860 as important. ### Source excerpt 104Critical 860Important 0Moderate 0Low Microsoft addresses 964 CVEs, smashing July's release as the largest Patch Tuesday release. This month's updates include patches for two zero-days that were exploited in the wild. Microsoft patched a record 964 CVEs in its September 2026 Patch Tuesday release, with 104 rated critical and 860 rated as important. This month's update includes patches for: .NET .NET and Visual Studio ASP.NET Core Active Directory Certificate Services (AD CS) Active Directory Domain Services Active Directory Federation Services (AD FS) Audio Video Control Transport Protocol Azure Arc Azure CycleCloud Azure HDInsights BranchCache Connected Devices Platform Service (Cdpsvc) Data Sharing Service Client GitHub Copilot and Visual Studio Code Graphic Fonts HID class driver IP Helper Internet Storage Name Service Kernel Streaming WOW Thunk Service Driver Microsoft Account Microsoft Authenticator Microsoft Azure Attestation service and Device Health Attestation Service Microsoft Azure CLI Microsoft COM for Windows Microsoft Dynamics 365 Microsoft Exchange Server Microsoft Graphics Component Microsoft Install Service Microsoft JScript Microsoft Local Security Authority Server (lsasrv) Microsoft Office Microsoft Office Access Microsoft Office Excel Microsoft Office Outlook Microsoft Office PowerPoint Microsoft Office Publisher Microsoft Office SharePoint Microsoft Office Word Microsoft Standard XPS Microsoft Teams for Android Microsoft Trace Data Helper Microsoft UxTheme Library (uxtheme.dll) Microsoft WDAC OLE DB provider for SQL Microsoft WebP Image Extension Microsoft Windows Codecs Library Microsoft Windows Media Foundation Microsoft Windows PDF Microsoft Windows SCSI Class System File Microsoft Windows Search Component Microsoft Windows Speech OpenSSH for Windows Power Automate Push Message Routing Service RPC Runtime Reliable Multicast Transport Driver (RMCAST) Remote Desktop Client Remote Desktop Gateway Service Role: DNS Server Role: Windows Fax Serv ## Today I will... find hidden latency across a distributed .NET application DevFeed: [Today I will... find hidden latency across a distributed .NET application]() Original publisher: [Read original article]() Author: Justin Yoo Published: 2026-09-08T16:00:22Z Content type: tutorial Language: en Sources: [Visual Studio Blog]() Topics: [.NET](), [Processes](), [GitHub Copilot]() Tags: [copilot](), [github-copilot](), [github-copilot-profiler-agent](), [latency](), [net](), [performance](), [processes](), [productivity](), [profile](), [visual-studio](), [visual-studio-2026](), [visual-studio-profiler]() ### AI overview A Visual Studio profiling walkthrough for finding hidden latency in a distributed .NET application by isolating the process responsible for a slow interaction and determining whether it is computing or waiting. ### Source excerpt When a distributed application feels slow, the user sees one delay. The code behind that delay may run across a web frontend, backend services, databases, and external APIs. If you profile only the frontend while the backend is slow, the profiler can show that the frontend is healthy without revealing the actual bottleneck. This article [...] The post Today I will... find hidden latency across a distributed .NET application appeared first on Visual Studio Blog. ## dotInsights | September 2026 DevFeed: [dotInsights | September 2026]() Original publisher: [Read original article]() Author: Rachel Appel Published: 2026-09-08T14:16:12Z Content type: article Language: en Sources: [The JetBrains Blog]() Topics: [.NET](), [Software Engineering](), [AI Development](), [ASP.NET Core](), [Uno Platform](), [Model Context Protocol]() Tags: [ai](), [asp-net-core](), [c-sharp](), [community](), [dotinsights](), [mcp](), [net](), [net-11](), [net-tools](), [september-2026](), [uno-platform]() ### AI overview A dotInsights newsletter roundup of recent .NET and software-development articles, with a note about the open-source C# Roslyn compiler and links covering performance, security, AI, web development, architecture, and tooling. ### Source excerpt Did you know? Fun fact: The C# compiler (Roslyn) is open source and written in C#. It exposes APIs to analyze and generate code. Welcome to dotInsights by JetBrains! This newsletter is the home for recent .NET and software development related information. 🔗 Links Here's the latest from the developer community. ☕ Coffee Break Take [...] ## Client-Side SDK Generation with VMware Cloud Foundation OpenAPI Specs DevFeed: [Client-Side SDK Generation with VMware Cloud Foundation OpenAPI Specs]() Original publisher: [Read original article]() Author: vmwareblogs Published: 2026-09-07T09:38:44Z Content type: tutorial Language: en Sources: [VMware Blogs]() Topics: [OpenAPI Specification](), [SDKs](), [.NET](), [C#](), [developer tooling](), [Java](), [Python](), [PowerShell]() Tags: [apis](), [cli](), [cloud](), [cloud-infrastructure](), [csharp](), [developer](), [developer-tooling](), [docker](), [home-page](), [java](), [net](), [openapi](), [powershell](), [programming](), [programming-language](), [python](), [rest](), [rest-api](), [sdk](), [specifications](), [vcf-9-0](), [vcf-9-1](), [vcf-sdk]() ### AI overview This guide explains how to generate a strongly typed .NET C# client SDK from VMware Cloud Foundation and vSphere OpenAPI specifications. It covers OpenAPI Generator, installation options, large specification handling, API-surface scoping, and the REST and JSON-RPC interfaces targeted by the example. ### Source excerpt Starting with VMware Cloud Foundation (VCF) 9.0, VMware officially publishes OpenAPI specifications for VCF APIs. This is a major milestone for developers, enabling you to consume VCF APIs using your programming language of choice. VMware provides first-class developer tooling such as VCF PowerCLI for PowerShell users and the VCF SDK offering Java and Python bindings. ... Continued The post Client-Side SDK Generation with VMware Cloud Foundation OpenAPI Specs appeared first on VMware Blogs. ## The hidden work of modernizing Malwarebytes DevFeed: [The hidden work of modernizing Malwarebytes]() Original publisher: [Read original article]() Author: Anna Tukhtarova Published: 2026-09-04T17:15:42Z Content type: article Language: en Sources: [Malwarebytes]() Topics: [.NET](), [migration](), [Endpoint Security & XDR](), [Operating system]() Tags: [diagnostics](), [drivers](), [endpoint-security](), [engineering](), [inside-malwarebytes](), [migration](), [modernization](), [net](), [security]() ### AI overview The article explains Malwarebytes' migration of its managed Windows components to .NET 10 and why runtime and dependency upgrades require security-feature-level rigor in endpoint software. ### Source excerpt Why disciplined dependency modernization is one of the highest-leverage engineering investments a security product can make. ## Build a memory MCP server on Appwrite DevFeed: [Build a memory MCP server on Appwrite]() Original publisher: [Read original article]() Author: Atharva Deosthale Published: 2026-09-04T00:00:00Z Content type: tutorial Language: en Sources: [Appwrite Blog]() Topics: [Appwrite](), [Model Context Protocol](), [MCP Server](), [OAuth 2.0](), [Serverless](), [Databases](), [Embeddings](), [Claude Code](), [web applications]() Tags: [ai](), [ai-assistants](), [ai-tools](), [api](), [claude](), [claude-code](), [embeddings](), [mcp](), [mcp-server](), [memory](), [net](), [oauth2](), [sdk](), [serverless](), [tutorial](), [tutorials]() ### AI overview This tutorial builds Recall, a small persistent-memory app on Appwrite. It hosts a stateless remote MCP server in an Appwrite Function, stores embedded memories in VectorsDB for similarity search, and uses OAuth2 for user-authorized access. It also explains connecting Claude Code to the server. ### Source excerpt Give your AI tools a shared, persistent memory. Host a stateless MCP server on Appwrite Functions, store memories in VectorsDB, and protect it with your project's OAuth2 server. ## Test what you ship: MSTest and Native AOT DevFeed: [Test what you ship: MSTest and Native AOT]() Original publisher: [Read original article]() Author: Amaury Levé Published: 2026-09-03T18:00:00Z Content type: article Language: en Sources: [.NET Blog]() Topics: [native aot](), [trimming](), [.NET](), [Code generation](), [Deployment]() Tags: [deployment](), [generation](), [mstest](), [native-aot](), [net](), [source-generators](), [testing](), [trimming]() ### AI overview MSTest 4.4 uses source generation to let test projects run as Native AOT executables, helping teams test under the same trimming and deployment constraints as their applications. The article explains that this can reveal application issues such as reflection-dependent serialization that managed test runs may miss. ### Source excerpt MSTest source generation lets test projects use the same Native AOT and trimming deployment model as the applications they validate, while reducing reflection on the test execution path. The post Test what you ship: MSTest and Native AOT appeared first on .NET Blog. [Next page]()